missFuncs.c - platform/external/mtools - Git at Google

 /*  Copyright 1991 Free Software Foundation, Inc.
  *  Copyright 1997,1999-2002,2007-2009 Alain Knaff.
  *  This file is part of mtools.
  *
  *  Mtools is free software: you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation, either version 3 of the License, or
  *  (at your option) any later version.
  *
  *  Mtools is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with Mtools.  If not, see <http://www.gnu.org/licenses/>.
  */
 #include "sysincludes.h"
 #include "mtools.h"

 #ifndef HAVE_STRDUP


 char *strdup(const char *str)
 {
     char *nstr;

     if (str == (char*)0)
         return 0;

     nstr = (char*)malloc((strlen(str) + 1));

     if (nstr == (char*)0)
     {
         (void)fprintf(stderr, "strdup(): not enough memory to duplicate `%s'\n",
 		      str);
 	exit(1);
     }

     (void)strcpy(nstr, str);

     return nstr;
 }
 #endif /* HAVE_STRDUP */

 #ifndef HAVE_STRNDUP
 char *strndup( const char *s, size_t n )
 {
     size_t nAvail;
     char *p;

     if ( !s )
         return 0;

     nAvail = min( strlen(s) + 1, n + 1 );
     p      = malloc( nAvail );
     if ( !p )
 	    return 0;
     memcpy( p, s, nAvail );
     p[nAvail - 1] = '\0';

     return p;
 }
 #endif /* HAVE_STRNDUP */


 #ifdef HAVE_WCHAR_H
 #ifndef HAVE_WCSDUP
 wchar_t *wcsdup(const wchar_t *wcs)
 {
     wchar_t *nwcs;

     if (wcs == (wchar_t*)0)
         return 0;

     nwcs = (wchar_t*)calloc(wcslen(wcs) + 1, sizeof(wchar_t));

     if (nwcs == (wchar_t*)0)
     {
         (void)fprintf(stderr, "wcsdup(): not enough memory to duplicate `%ls'\n",
 		      wcs);
 	exit(1);
     }

     (void)wcscpy(nwcs, wcs);

     return nwcs;
 }
 #endif /* HAVE_WCSDUP */
 #endif

 #ifndef HAVE_MEMCPY
 /*
  * Copy contents of memory (with possible overlapping).
  */
 char *memcpy(char *s1, const char *s2, size_t n)
 {
 	bcopy(s2, s1, n);
 	return(s1);
 }
 #endif

 #ifndef HAVE_MEMSET
 /*
  * Copies the character c, n times to string s
  */
 char *memset(char *s, char c, size_t n)
 {
 	char *s1 = s;

 	while (n > 0) {
 		--n;
 		*s++ = c;
 	}
 	return(s1);
 }
 #endif /* HAVE_MEMSET */


 #ifndef HAVE_STRCHR

 char * strchr (const char* s, int c)
 {
 	if (!s) return NULL;
 	while (*s && *s != c) s++;
 	if (*s)
 		return (char*) s;
 	else
 		return NULL;
 }

 #endif

 #ifndef HAVE_STRRCHR

 char * strrchr (const char* s1, int c)
 {
 	char* s = (char*) s1;
 	char* start = (char*) s;
 	if (!s) return NULL;
 	s += strlen(s)-1;
 	while (*s != c && (unsigned long) s != (unsigned long) start) s--;
 	if ((unsigned long) s == (unsigned long) start && *s != c)
 		return NULL;
 	else
 		return s;
 }

 #endif

 #ifndef HAVE_STRPBRK
 /*
  * Return ptr to first occurrence of any character from `brkset'
  * in the character string `string'; NULL if none exists.
  */
 char *strpbrk(const char *string, const char *brkset)
 {
 	register char *p;

 	if (!string || !brkset)
 		return(0);
 	do {
 		for (p = brkset; *p != '\0' && *p != *string; ++p)
 			;
 		if (*p != '\0')
 			return(string);
 	}
 	while (*string++);
 	return(0);
 }
 #endif /* HAVE_STRPBRK */


 #ifndef HAVE_STRTOUL
 static int getdigit(char a, int max)
 {
 	int dig;

 	if(a < '0')
 		return -1;
 	if(a <= '9') {
 		dig = a - '0';
 	} else if(a >= 'a')
 		dig = a - 'a' + 10;
 	else if(a >= 'A')
 		dig = a - 'A' + 10;
 	if(dig >= max)
 		return -1;
 	else
 		return dig;
 }

 unsigned long strtoul(const char *string, char **eptr, int base)
 {
 	int accu, dig;

 	if(base < 1 || base > 36) {
 		if(string[0] == '0') {
 			switch(string[1]) {
 			       	case 'x':
 				case 'X':
 					return strtoul(string+2, eptr, 16);
 				case 'b':
 			       	case 'B':
 					return strtoul(string+2, eptr, 2);
 				default:
 					return strtoul(string, eptr, 8);
 			}
 		}
 	       	return strtoul(string, eptr, 10);
 	}
 	if(base == 16 && string[0] == '0' &&
 	   (string[1] == 'x' || string[1] == 'X'))
 		string += 2;

 	if(base == 2 && string[0] == '0' &&
 	   (string[1] == 'b' || string[1] == 'B'))
 		string += 2;
 	accu = 0;
 	while( (dig = getdigit(*string, base)) != -1 ) {
 		accu = accu * base + dig;
 		string++;
 	}
 	if(eptr)
 		*eptr = (char *) string;
 	return accu;
 }
 #endif /* HAVE_STRTOUL */

 #ifndef HAVE_STRTOL
 long strtol(const char *string, char **eptr, int base)
 {
 	long l;

 	if(*string == '-') {
 		return -(long) strtoul(string+1, eptr, base);
 	} else {
 		if (*string == '+')
 			string ++;
 		return (long) strtoul(string, eptr, base);
 	}
 }
 #endif


 #ifndef HAVE_STRSPN
 /* Return the length of the maximum initial segment
    of S which contains only characters in ACCEPT.  */
 size_t strspn(const char *s, const char *accept)
 {
   register char *p;
   register char *a;
   register size_t count = 0;

   for (p = s; *p != '\0'; ++p)
     {
       for (a = accept; *a != '\0'; ++a)
 	if (*p == *a)
 	  break;
       if (*a == '\0')
 	return count;
       else
 	++count;
     }

   return count;
 }
 #endif /* HAVE_STRSPN */

 #ifndef HAVE_STRCSPN
 /* Return the length of the maximum initial segment of S
    which contains no characters from REJECT.  */
 size_t strcspn (const char *s, const char *reject)
 {
   register size_t count = 0;

   while (*s != '\0')
     if (strchr (reject, *s++) == NULL)
       ++count;
     else
       return count;

   return count;
 }

 #endif /* HAVE_STRCSPN */

 #ifndef HAVE_STRERROR

 #ifndef DECL_SYS_ERRLIST
 extern char *sys_errlist[];
 #endif

 char *strerror(int errno)
 {
   return sys_errlist[errno];
 }
 #endif

 #ifndef HAVE_STRCASECMP
 /* Compare S1 and S2, ignoring case, returning less than, equal to or
    greater than zero if S1 is lexiographically less than,
    equal to or greater than S2.  */
 int strcasecmp(const char *s1, const char *s2)
 {
   register const unsigned char *p1 = (const unsigned char *) s1;
   register const unsigned char *p2 = (const unsigned char *) s2;
   unsigned char c1, c2;

   if (p1 == p2)
     return 0;

   do
     {
       c1 = tolower (*p1++);
       c2 = tolower (*p2++);
       if (c1 == '\0')
 	break;
     }
   while (c1 == c2);

   return c1 - c2;
 }
 #endif

 #ifdef HAVE_WCHAR_H
 #ifndef HAVE_WCSCASECMP
 /* Compare S1 and S2, ignoring case, returning less than, equal to or
    greater than zero if S1 is lexiographically less than,
    equal to or greater than S2.  */
 int wcscasecmp(const wchar_t *s1, const wchar_t *s2)
 {
   register const wchar_t *p1 = s1;
   register const wchar_t *p2 = s2;
   wchar_t c1, c2;

   if (p1 == p2)
     return 0;

   do
     {
       c1 = towlower (*p1++);
       c2 = towlower (*p2++);
       if (c1 == '\0')
 	break;
     }
   while (c1 == c2);

   return c1 - c2;
 }
 #endif
 #endif


 #ifndef HAVE_STRCASECMP
 /* Compare S1 and S2, ignoring case, returning less than, equal to or
    greater than zero if S1 is lexiographically less than,
    equal to or greater than S2.  */
 int strncasecmp(const char *s1, const char *s2, size_t n)
 {
   register const unsigned char *p1 = (const unsigned char *) s1;
   register const unsigned char *p2 = (const unsigned char *) s2;
   unsigned char c1, c2;

   if (p1 == p2)
     return 0;

   c1 = c2 = 1;
   while (c1 && c1 == c2 && n-- > 0)
     {
       c1 = tolower (*p1++);
       c2 = tolower (*p2++);
     }

   return c1 - c2;
 }
 #endif

 #ifndef HAVE_GETPASS
 char *getpass(const char *prompt)
 {
 	static char password[129];
 	int l;

 	fprintf(stderr,"%s",prompt);
 	fgets(password, 128, stdin);
 	l = strlen(password);
 	if(l && password[l-1] == '\n')
 		password[l-1] = '\0';
 	return password;

 }
 #endif

 #ifndef HAVE_ATEXIT

 #ifdef HAVE_ON_EXIT
 int atexit(void (*function)(void))
 {
 	return on_exit( (void(*)(int,void*)) function, 0);
 }
 #else

 typedef struct exitCallback {
 	void (*function) (void);
 	struct exitCallback *next;
 } exitCallback_t;

 static exitCallback_t *callback = 0;

 int atexit(void (*function) (void))
 {
 	exitCallback_t *newCallback;

 	newCallback = New(exitCallback_t);
 	if(!newCallback) {
 		printOom();
 		exit(1);
 	}
 	newCallback->function = function;
 	newCallback->next = callback;
 	callback = newCallback;
 	return 0;
 }
 #undef exit

 void myexit(int code)
 {
   void (*function)(void);

   while(callback) {
     function = callback->function;
     callback = callback->next;
     function();
   }
   exit(code);
 }

 #endif

 #endif

 static const char PATH_SEP = '/';

 /*#ifndef HAVE_BASENAME*/
 const char *_basename(const char *filename)
 {
 	char *ptr;

 	ptr = strrchr(filename, PATH_SEP);
 	if(ptr)
 		filename = ptr + 1;

 #ifdef OS_mingw32msvc
 	ptr = strrchr(filename, '\\');
 	if(ptr)
 		filename = ptr + 1;
 #endif

 	return filename;
 }
 /*#endif*/

 /* Strip the suffix ".exe" from the argument, if present. */
 void _stripexe(char *filename)
 {
 	char *ptr;
 	ptr = strrchr(filename, '.');
 	if(ptr && !strcasecmp(ptr, ".exe"))
 		*ptr = '\0';
 }

 #ifndef HAVE_STRNLEN
 size_t strnlen(const char *str, size_t l)
 {
   size_t i;
   for(i=0; i<l; i++) {
     if(str[i] == 0)
       break;
   }
   return i;
 }
 #endif /* HAVE_STRNLEN */

 #ifdef HAVE_WCHAR_H
 #ifndef HAVE_WCSNLEN
 size_t wcsnlen(const wchar_t *wcs, size_t l)
 {
   size_t i;
   for(i=0; i<l; i++) {
     if(wcs[i] == 0)
       break;
   }
   return i;
 }
 #endif /* HAVE_WCSNLEN */
 #endif
	/* Copyright 1991 Free Software Foundation, Inc.
	* Copyright 1997,1999-2002,2007-2009 Alain Knaff.
	* This file is part of mtools.
	*
	* Mtools is free software: you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation, either version 3 of the License, or
	* (at your option) any later version.
	*
	* Mtools is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with Mtools. If not, see <http://www.gnu.org/licenses/>.
	*/
	#include "sysincludes.h"
	#include "mtools.h"

	#ifndef HAVE_STRDUP


	char strdup(const char str)
	{
	char *nstr;

	if (str == (char*)0)
	return 0;

	nstr = (char*)malloc((strlen(str) + 1));

	if (nstr == (char*)0)
	{
	(void)fprintf(stderr, "strdup(): not enough memory to duplicate `%s'\n",
	str);
	exit(1);
	}

	(void)strcpy(nstr, str);

	return nstr;
	}
	#endif /* HAVE_STRDUP */

	#ifndef HAVE_STRNDUP
	char strndup( const char s, size_t n )
	{
	size_t nAvail;
	char *p;

	if ( !s )
	return 0;

	nAvail = min( strlen(s) + 1, n + 1 );
	p = malloc( nAvail );
	if ( !p )
	return 0;
	memcpy( p, s, nAvail );
	p[nAvail - 1] = '\0';

	return p;
	}
	#endif /* HAVE_STRNDUP */


	#ifdef HAVE_WCHAR_H
	#ifndef HAVE_WCSDUP
	wchar_t wcsdup(const wchar_t wcs)
	{
	wchar_t *nwcs;

	if (wcs == (wchar_t*)0)
	return 0;

	nwcs = (wchar_t*)calloc(wcslen(wcs) + 1, sizeof(wchar_t));

	if (nwcs == (wchar_t*)0)
	{
	(void)fprintf(stderr, "wcsdup(): not enough memory to duplicate `%ls'\n",
	wcs);
	exit(1);
	}

	(void)wcscpy(nwcs, wcs);

	return nwcs;
	}
	#endif /* HAVE_WCSDUP */
	#endif

	#ifndef HAVE_MEMCPY
	/*
	* Copy contents of memory (with possible overlapping).
	*/
	char memcpy(char s1, const char *s2, size_t n)
	{
	bcopy(s2, s1, n);
	return(s1);
	}
	#endif

	#ifndef HAVE_MEMSET
	/*
	* Copies the character c, n times to string s
	*/
	char memset(char s, char c, size_t n)
	{
	char *s1 = s;

	while (n > 0) {
	--n;
	*s++ = c;
	}
	return(s1);
	}
	#endif /* HAVE_MEMSET */


	#ifndef HAVE_STRCHR

	char * strchr (const char* s, int c)
	{
	if (!s) return NULL;
	while (s && s != c) s++;
	if (*s)
	return (char*) s;
	else
	return NULL;
	}

	#endif

	#ifndef HAVE_STRRCHR

	char * strrchr (const char* s1, int c)
	{
	char* s = (char*) s1;
	char* start = (char*) s;
	if (!s) return NULL;
	s += strlen(s)-1;
	while (*s != c && (unsigned long) s != (unsigned long) start) s--;
	if ((unsigned long) s == (unsigned long) start && *s != c)
	return NULL;
	else
	return s;
	}

	#endif

	#ifndef HAVE_STRPBRK
	/*
	* Return ptr to first occurrence of any character from `brkset'
	* in the character string `string'; NULL if none exists.
	*/
	char strpbrk(const char string, const char *brkset)
	{
	register char *p;

	if (!string \|\| !brkset)
	return(0);
	do {
	for (p = brkset; p != '\0' && p != *string; ++p)
	;
	if (*p != '\0')
	return(string);
	}
	while (*string++);
	return(0);
	}
	#endif /* HAVE_STRPBRK */


	#ifndef HAVE_STRTOUL
	static int getdigit(char a, int max)
	{
	int dig;

	if(a < '0')
	return -1;
	if(a <= '9') {
	dig = a - '0';
	} else if(a >= 'a')
	dig = a - 'a' + 10;
	else if(a >= 'A')
	dig = a - 'A' + 10;
	if(dig >= max)
	return -1;
	else
	return dig;
	}

	unsigned long strtoul(const char string, char *eptr, int base)
	{
	int accu, dig;

	if(base < 1 \|\| base > 36) {
	if(string[0] == '0') {
	switch(string[1]) {
	case 'x':
	case 'X':
	return strtoul(string+2, eptr, 16);
	case 'b':
	case 'B':
	return strtoul(string+2, eptr, 2);
	default:
	return strtoul(string, eptr, 8);
	}
	}
	return strtoul(string, eptr, 10);
	}
	if(base == 16 && string[0] == '0' &&
	(string[1] == 'x' \|\| string[1] == 'X'))
	string += 2;

	if(base == 2 && string[0] == '0' &&
	(string[1] == 'b' \|\| string[1] == 'B'))
	string += 2;
	accu = 0;
	while( (dig = getdigit(*string, base)) != -1 ) {
	accu = accu * base + dig;
	string++;
	}
	if(eptr)
	eptr = (char ) string;
	return accu;
	}
	#endif /* HAVE_STRTOUL */

	#ifndef HAVE_STRTOL
	long strtol(const char string, char *eptr, int base)
	{
	long l;

	if(*string == '-') {
	return -(long) strtoul(string+1, eptr, base);
	} else {
	if (*string == '+')
	string ++;
	return (long) strtoul(string, eptr, base);
	}
	}
	#endif



	#ifndef HAVE_STRSPN
	/* Return the length of the maximum initial segment
	of S which contains only characters in ACCEPT. */
	size_t strspn(const char s, const char accept)
	{
	register char *p;
	register char *a;
	register size_t count = 0;

	for (p = s; *p != '\0'; ++p)
	{
	for (a = accept; *a != '\0'; ++a)
	if (p == a)
	break;
	if (*a == '\0')
	return count;
	else
	++count;
	}

	return count;
	}
	#endif /* HAVE_STRSPN */

	#ifndef HAVE_STRCSPN
	/* Return the length of the maximum initial segment of S
	which contains no characters from REJECT. */
	size_t strcspn (const char s, const char reject)
	{
	register size_t count = 0;

	while (*s != '\0')
	if (strchr (reject, *s++) == NULL)
	++count;
	else
	return count;

	return count;
	}

	#endif /* HAVE_STRCSPN */

	#ifndef HAVE_STRERROR

	#ifndef DECL_SYS_ERRLIST
	extern char *sys_errlist[];
	#endif

	char *strerror(int errno)
	{
	return sys_errlist[errno];
	}
	#endif

	#ifndef HAVE_STRCASECMP
	/* Compare S1 and S2, ignoring case, returning less than, equal to or
	greater than zero if S1 is lexiographically less than,
	equal to or greater than S2. */
	int strcasecmp(const char s1, const char s2)
	{
	register const unsigned char p1 = (const unsigned char ) s1;
	register const unsigned char p2 = (const unsigned char ) s2;
	unsigned char c1, c2;

	if (p1 == p2)
	return 0;

	do
	{
	c1 = tolower (*p1++);
	c2 = tolower (*p2++);
	if (c1 == '\0')
	break;
	}
	while (c1 == c2);

	return c1 - c2;
	}
	#endif

	#ifdef HAVE_WCHAR_H
	#ifndef HAVE_WCSCASECMP
	/* Compare S1 and S2, ignoring case, returning less than, equal to or
	greater than zero if S1 is lexiographically less than,
	equal to or greater than S2. */
	int wcscasecmp(const wchar_t s1, const wchar_t s2)
	{
	register const wchar_t *p1 = s1;
	register const wchar_t *p2 = s2;
	wchar_t c1, c2;

	if (p1 == p2)
	return 0;

	do
	{
	c1 = towlower (*p1++);
	c2 = towlower (*p2++);
	if (c1 == '\0')
	break;
	}
	while (c1 == c2);

	return c1 - c2;
	}
	#endif
	#endif


	#ifndef HAVE_STRCASECMP
	/* Compare S1 and S2, ignoring case, returning less than, equal to or
	greater than zero if S1 is lexiographically less than,
	equal to or greater than S2. */
	int strncasecmp(const char s1, const char s2, size_t n)
	{
	register const unsigned char p1 = (const unsigned char ) s1;
	register const unsigned char p2 = (const unsigned char ) s2;
	unsigned char c1, c2;

	if (p1 == p2)
	return 0;

	c1 = c2 = 1;
	while (c1 && c1 == c2 && n-- > 0)
	{
	c1 = tolower (*p1++);
	c2 = tolower (*p2++);
	}

	return c1 - c2;
	}
	#endif

	#ifndef HAVE_GETPASS
	char getpass(const char prompt)
	{
	static char password[129];
	int l;

	fprintf(stderr,"%s",prompt);
	fgets(password, 128, stdin);
	l = strlen(password);
	if(l && password[l-1] == '\n')
	password[l-1] = '\0';
	return password;

	}
	#endif

	#ifndef HAVE_ATEXIT

	#ifdef HAVE_ON_EXIT
	int atexit(void (*function)(void))
	{
	return on_exit( (void()(int,void)) function, 0);
	}
	#else

	typedef struct exitCallback {
	void (*function) (void);
	struct exitCallback *next;
	} exitCallback_t;

	static exitCallback_t *callback = 0;

	int atexit(void (*function) (void))
	{
	exitCallback_t *newCallback;

	newCallback = New(exitCallback_t);
	if(!newCallback) {
	printOom();
	exit(1);
	}
	newCallback->function = function;
	newCallback->next = callback;
	callback = newCallback;
	return 0;
	}
	#undef exit

	void myexit(int code)
	{
	void (*function)(void);

	while(callback) {
	function = callback->function;
	callback = callback->next;
	function();
	}
	exit(code);
	}

	#endif

	#endif

	static const char PATH_SEP = '/';

	/#ifndef HAVE_BASENAME/
	const char _basename(const char filename)
	{
	char *ptr;

	ptr = strrchr(filename, PATH_SEP);
	if(ptr)
	filename = ptr + 1;

	#ifdef OS_mingw32msvc
	ptr = strrchr(filename, '\\');
	if(ptr)
	filename = ptr + 1;
	#endif

	return filename;
	}
	/#endif/

	/* Strip the suffix ".exe" from the argument, if present. */
	void _stripexe(char *filename)
	{
	char *ptr;
	ptr = strrchr(filename, '.');
	if(ptr && !strcasecmp(ptr, ".exe"))
	*ptr = '\0';
	}

	#ifndef HAVE_STRNLEN
	size_t strnlen(const char *str, size_t l)
	{
	size_t i;
	for(i=0; i<l; i++) {
	if(str[i] == 0)
	break;
	}
	return i;
	}
	#endif /* HAVE_STRNLEN */

	#ifdef HAVE_WCHAR_H
	#ifndef HAVE_WCSNLEN
	size_t wcsnlen(const wchar_t *wcs, size_t l)
	{
	size_t i;
	for(i=0; i<l; i++) {
	if(wcs[i] == 0)
	break;
	}
	return i;
	}
	#endif /* HAVE_WCSNLEN */
	#endif